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Clinical characteristics of insulin resistance syndromes: A nationwide survey in Japan.

  • Takeuchi, Takehito1
  • Ishigaki, Yasushi2
  • Hirota, Yushi1
  • Hasegawa, Yutaka2
  • Yorifuji, Tohru3
  • Kadowaki, Hiroko4
  • Akamizu, Takashi5
  • Ogawa, Wataru1
  • Katagiri, Hideki6
  • 1 Division of Diabetes and Endocrinology, Kobe University Graduate School of Medicine, Kobe, Japan. , (Japan)
  • 2 Division of Diabetes, Metabolism and Endocrinology, Iwate Medical University, Morioka, Japan. , (Japan)
  • 3 Division of Pediatric Endocrinology and Metabolism, Children's Medical Center, Osaka City General Hospital, Osaka, Japan. , (Japan)
  • 4 Department of Pediatrics, Sanno Hospital, Tokyo, Japan. , (Japan)
  • 5 First Department of Medicine, Wakayama Medical University, Wakayama, Japan. , (Japan)
  • 6 Department of Metabolism and Diabetes, Tohoku University Graduate School of Medicine, Sendai, Japan. , (Japan)
Published Article
Journal of diabetes investigation
Publication Date
May 01, 2020
DOI: 10.1111/jdi.13171
PMID: 31677333


Insulin resistance syndrome (IRS) of type A or B is triggered by gene abnormalities of or autoantibodies to the insulin receptor, respectively. Rabson-Mendenhall/Donohue syndrome is also caused by defects of the insulin receptor gene (INSR), but is more serious than type A IRS. Here, we carried out a nationwide survey of these syndromes in Japan. We sent questionnaires to a total of 1,957 academic councilors or responsible individuals at certified facilities of the Japan Diabetes Society, as well as at the department pediatrics or neonatology in medical centers with >300 beds. We received 904 responses with information on 23, 30 and 10 cases of type A or B IRS and Rabson-Mendenhall/Donohue syndrome, respectively. Eight cases with type A IRS-like clinical features, but without an abnormality of INSR, were tentatively designated type X IRS, with five of these cases testing positive for PIK3R1 mutations. Fasting serum insulin levels at diagnosis (mean ± standard deviation) were 132.0 ± 112.4, 1122.1 ± 3292.5, 2895.5 ± 3181.5 and 145.0 ± 141.4 μU/mL for type A IRS, type B IRS, Rabson-Mendenhall/Donohue syndrome and type X IRS, respectively. Type A and type X IRS, as well as Rabson-Mendenhall/Donohue syndrome were associated with low birthweight. Type B IRS was diagnosed most frequently in older individuals, and was often associated with concurrent autoimmune conditions and hypoglycemia. Information yielded by this first nationwide survey should provide epidemiological insight into these rare conditions and inform better healthcare for affected patients. © 2019 The Authors. Journal of Diabetes Investigation published by Asian Association for the Study of Diabetes (AASD) and John Wiley & Sons Australia, Ltd.

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